As I suggested in the shout box, look at registration and posting filters. Those are the things you see on sites sometimes where you have to duplicate the text that's in a box in order for your info to be accepted. The idea is that, because the box is an image and the text it contains can't be scraped from the image title, it's very difficult to automate the text that's in it. Therefore, a human has to be sitting at the keyboard. Most of the crap we've been seeing are bots that just scrape stuff from the site and then create an account and post useless shit. Because they are automated, this blocks them rather effectively.
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'03SE

BFG AT/KO
Custom fuse panels for electrical mods
Custom backup solution mod (lights/camera/monitor)
Custom switched power outlets (8+ total)
Lots-o-Lights (6 driving lights, 10 total)

Original registration - Sep, '03
Pre-crash post count - ~1100